Gubbins, D., Herrero-Bervera, E., & service), S. (. (2007). Encyclopedia of Geomagnetism and Paleomagnetism [electronic resource]. Dordrecht : Springer Science+Business Media B.V..
Lua i Stíl Chicago (17ú heag.)Gubbins, David, Emilio Herrero-Bervera, agus SpringerLink (Online service). Encyclopedia of Geomagnetism and Paleomagnetism [electronic Resource]. Dordrecht : Springer Science+Business Media B.V., 2007.
Lua MLA (9ú heag.)Gubbins, David, et al. Encyclopedia of Geomagnetism and Paleomagnetism [electronic Resource]. Dordrecht : Springer Science+Business Media B.V., 2007.
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